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| author | Kenny Yu <kennyyu@fb.com> | 2022-01-24 10:54:01 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-01-24 19:59:27 -0800 |
| commit | 376040e47334c6dc6a939a32197acceb00fe4acf (patch) | |
| tree | 19b75a8c70bc27d8569ebdaf18079494a525bd82 /tools/testing/selftests/bpf/prog_tests/autoload.c | |
| parent | bpf: Add support for bpf iterator programs to use sleepable helpers (diff) | |
| download | linux-376040e47334c6dc6a939a32197acceb00fe4acf.tar.gz linux-376040e47334c6dc6a939a32197acceb00fe4acf.zip | |
bpf: Add bpf_copy_from_user_task() helper
This adds a helper for bpf programs to read the memory of other
tasks.
As an example use case at Meta, we are using a bpf task iterator program
and this new helper to print C++ async stack traces for all threads of
a given process.
Signed-off-by: Kenny Yu <kennyyu@fb.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220124185403.468466-3-kennyyu@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/autoload.c')
0 files changed, 0 insertions, 0 deletions